Nordost Red Dawn "Flatline" interconnect Want to replace with a more musical sounding IC.

I have a Nordost Red Dawn "Flatline"  IC which I bought used on AG about 5 years ago.  It has seen several system come and go, from separates to my current Rogue's Sphinx hybrid integrated amp, but just two speaker systems. Overall, I like the cable but have concluded that it is bright factor in the interface between the Rogue integrated, and the upgraded Ayre CX7e mp  CD player.  BTW,. Prior to the Ayre CD player, I had a Rega Apollo CD player and used a Chord Chameleon IC ..... Worked very well 

I don't want to start going back and forth with The Cable Company home trial service.  Therefore, would appreciate and consider recommendations from members who have used Nordost RD Flatline IC in the past with less than positive results. The speakers are Golden Ear Tech Triton 7's and speaker cable is Harmonic technology PRO 11+ which is excellent.  Thank you.